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pace. <br /> A T f 17 <br /> REPORT Of LABORATORY ANALYSIS <br /> E A'SURANCE of DLAL11T <br /> Pyr Brady Nagle QUALITY CONTROL DATA January 08, 1992 <br /> Page 23 PACE Project Number 411230505 <br /> Client Reference Exxon 7-3108 ' <br /> TPH GASOLINE/BTEX <br /> Batch 70 08984 <br /> Samples- 70 0142610, 70 0142644 <br /> METHOD BLANK. <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) : <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) - <br /> Benzene ug/kg wet 1 .0 ND <br /> Toluene ug/kg wet 1 0 ND <br /> Ethylbenzene ug/kg wet 1 0 ND <br /> Xylenes, Total ug/kg wet 1 .0 ND <br /> BORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> arameter Units MDL Value - Recv Recv RPD <br /> urgea a Fuels, as Gasoline (EPA 8015) ug/kg wet 200 32T1-2%' 106% 5% <br /> Benzene ug/kg wet 1 .0 40.0 96% 97% 1% <br /> Toluene ug/kg wet 1 .0 40.0 97% 98% 1% <br /> Ethylbenzene ug/kg wet 1 .0 40 0 99% 100% 1% <br /> Xylenes, Total ug/kg wet 1 .0 80.0 98% 99% 1% <br /> MDL Method Detection Limit <br /> ND Not detected at or above the MDL <br /> RPD Relative Percent Difference <br /> 0 1 <br /> 11 Digital Drive Offices Serving Minneapairs Minnesota Charlotte North Caiafina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Fbrda Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York,New Tort <br /> FAX 415 883 2673 San Francisco California Pntsburgh Pennsylvanta <br /> Kansas City Missoun Denver Colorado <br />